"Difference of sexes shouldn't matter. Do you take it for granted that women can't beat men? Can you protect your precious ones with that mindset?"

In the early concept shown in the Materials Collection, Haruka is described as being selfish, stubborn, funny, and conceited. She was also described as a polarized person who is ignorant of the world and hates being restrained. Haruka is shown wearing both feminine and masculine clothing. When she wears masculine clothes, her appearance is rendered sharper to help make the distinction. However, she is often mistaken to be a male.

Otaku Trivia:

1) In the manga and in some artwork, Haruka is pictured with a Ferrari F512M; Naoko Takeuchi's favorite car.

2) Haruka's apartment number in the Infinity arc in "1127". If you delete one "1", the numbers will be "127", the numbers of her birthday (her birthday in January 27, or 1-27).

3) Despite her dedication to Michiru, she often flirts with Usagi, though seemingly in all in good fun.